28650251372408 has 32 divisors (see below), whose sum is σ = 53814880310400. Its totient is φ = 14299622908032.

The previous prime is 28650251372321. The next prime is 28650251372429. The reversal of 28650251372408 is 80427315205682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28650251372408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36463466 + ... + 37240902.

It is an arithmetic number, because the mean of its divisors is an integer number (1681715009700).

Almost surely, 2^{28650251372408} is an apocalyptic number.

It is an amenable number.

28650251372408 is a deficient number, since it is larger than the sum of its proper divisors (25164628937992).

28650251372408 is a wasteful number, since it uses less digits than its factorization.

28650251372408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785639 (or 785635 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 28650251372408 in words is "twenty-eight trillion, six hundred fifty billion, two hundred fifty-one million, three hundred seventy-two thousand, four hundred eight".